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a0d0e21e 1/* op.h
79072805 2 *
be3c0a43 3 * Copyright (c) 1991-2002, Larry Wall
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4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
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8 */
9
10/*
11 * The fields of BASEOP are:
12 * op_next Pointer to next ppcode to execute after this one.
13 * (Top level pre-grafted op points to first op,
14 * but this is replaced when op is grafted in, when
15 * this op will point to the real next op, and the new
16 * parent takes over role of remembering starting op.)
17 * op_ppaddr Pointer to current ppcode's function.
18 * op_type The type of the operation.
19 * op_flags Flags common to all operations. See OPf_* below.
20 * op_private Flags peculiar to a particular operation (BUT,
21 * by default, set to the number of children until
22 * the operation is privatized by a check routine,
23 * which may or may not check number of children).
24 */
25
d52413be 26#if PTRSIZE == 4
708fe1ba 27typedef U32TYPE PADOFFSET;
d52413be
JH
28#else
29# if PTRSIZE == 8
30typedef U64TYPE PADOFFSET;
31# endif
708fe1ba 32#endif
11343788 33#define NOT_IN_PAD ((PADOFFSET) -1)
79072805 34
4633a7c4 35#ifdef DEBUGGING_OPS
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36#define OPCODE opcode
37#else
38#define OPCODE U16
39#endif
40
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DL
41#ifdef BASEOP_DEFINITION
42#define BASEOP BASEOP_DEFINITION
43#else
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44#define BASEOP \
45 OP* op_next; \
46 OP* op_sibling; \
4f63d024 47 OP* (CPERLscope(*op_ppaddr))(pTHX); \
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48 PADOFFSET op_targ; \
49 OPCODE op_type; \
50 U16 op_seq; \
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51 U8 op_flags; \
52 U8 op_private;
0f4eea8f 53#endif
79072805 54
54310121
PP
55#define OP_GIMME(op,dfl) \
56 (((op)->op_flags & OPf_WANT) == OPf_WANT_VOID ? G_VOID : \
57 ((op)->op_flags & OPf_WANT) == OPf_WANT_SCALAR ? G_SCALAR : \
58 ((op)->op_flags & OPf_WANT) == OPf_WANT_LIST ? G_ARRAY : \
59 dfl)
60
954c1994 61/*
ccfc67b7
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62=head1 "Gimme" Values
63
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GS
64=for apidoc Amn|U32|GIMME_V
65The XSUB-writer's equivalent to Perl's C<wantarray>. Returns C<G_VOID>,
91e74348 66C<G_SCALAR> or C<G_ARRAY> for void, scalar or list context,
954c1994
GS
67respectively.
68
69=for apidoc Amn|U32|GIMME
70A backward-compatible version of C<GIMME_V> which can only return
71C<G_SCALAR> or C<G_ARRAY>; in a void context, it returns C<G_SCALAR>.
72Deprecated. Use C<GIMME_V> instead.
73
74=cut
75*/
76
533c011a 77#define GIMME_V OP_GIMME(PL_op, block_gimme())
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78
79/* Public flags */
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PP
80
81#define OPf_WANT 3 /* Mask for "want" bits: */
82#define OPf_WANT_VOID 1 /* Want nothing */
83#define OPf_WANT_SCALAR 2 /* Want single value */
84#define OPf_WANT_LIST 3 /* Want list of any length */
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85#define OPf_KIDS 4 /* There is a firstborn child. */
86#define OPf_PARENS 8 /* This operator was parenthesized. */
463ee0b2 87 /* (Or block needs explicit scope entry.) */
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88#define OPf_REF 16 /* Certified reference. */
89 /* (Return container, not containee). */
90#define OPf_MOD 32 /* Will modify (lvalue). */
91#define OPf_STACKED 64 /* Some arg is arriving on the stack. */
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92#define OPf_SPECIAL 128 /* Do something weird for this op: */
93 /* On local LVAL, don't init local value. */
94 /* On OP_SORT, subroutine is inlined. */
95 /* On OP_NOT, inversion was implicit. */
a0d0e21e 96 /* On OP_LEAVE, don't restore curpm. */
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97 /* On truncate, we truncate filehandle */
98 /* On control verbs, we saw no label */
99 /* On flipflop, we saw ... instead of .. */
100 /* On UNOPs, saw bare parens, e.g. eof(). */
a0d0e21e 101 /* On OP_ENTERSUB || OP_NULL, saw a "do". */
afebc493 102 /* On OP_EXISTS, treat av as av, not avhv. */
f2ec2afd 103 /* On OP_(ENTER|LEAVE)EVAL, don't clear $@ */
54b9620d 104 /* On OP_ENTERITER, loop var is per-thread */
497711e7
GS
105 /* On pushre, re is /\s+/ imp. by split " " */
106 /* On regcomp, "use re 'eval'" was in scope */
7c6fadd6 107 /* On OP_READLINE, was <$filehandle> */
4e3399f9 108 /* On RV2[SG]V, don't create GV--in defined()*/
79072805 109
54310121 110/* old names; don't use in new code, but don't break them, either */
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111#define OPf_LIST OPf_WANT_LIST
112#define OPf_KNOW OPf_WANT
954c1994 113
54310121 114#define GIMME \
62a559b8
NIS
115 (PL_op->op_flags & OPf_WANT \
116 ? ((PL_op->op_flags & OPf_WANT) == OPf_WANT_LIST \
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117 ? G_ARRAY \
118 : G_SCALAR) \
119 : dowantarray())
54310121 120
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121/* NOTE: OP_NEXTSTATE, OP_DBSTATE, and OP_SETSTATE (i.e. COPs) carry lower
122 * bits of PL_hints in op_private */
123
a0d0e21e 124/* Private for lvalues */
cd06dffe 125#define OPpLVAL_INTRO 128 /* Lvalue must be localized or lvalue sub */
a0d0e21e 126
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127/* Private for OP_LEAVE, OP_LEAVESUB, OP_LEAVESUBLV and OP_LEAVEWRITE */
128#define OPpREFCOUNTED 64 /* op_targ carries a refcount */
129
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130/* Private for OP_AASSIGN */
131#define OPpASSIGN_COMMON 64 /* Left & right have syms in common. */
10c8fecd 132#define OPpASSIGN_HASH 32 /* Assigning to possible pseudohash. */
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133
134/* Private for OP_SASSIGN */
135#define OPpASSIGN_BACKWARDS 64 /* Left & right switched. */
79072805 136
c90c0ff4
PP
137/* Private for OP_MATCH and OP_SUBST{,CONST} */
138#define OPpRUNTIME 64 /* Pattern coming in on the stack */
139
79072805 140/* Private for OP_TRANS */
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141#define OPpTRANS_FROM_UTF 1
142#define OPpTRANS_TO_UTF 2
383e7cdd 143#define OPpTRANS_IDENTICAL 4 /* right side is same as left */
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144#define OPpTRANS_SQUASH 8
145#define OPpTRANS_DELETE 16
146#define OPpTRANS_COMPLEMENT 32
147#define OPpTRANS_GROWS 64
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148
149/* Private for OP_REPEAT */
a0d0e21e 150#define OPpREPEAT_DOLIST 64 /* List replication. */
79072805 151
d3011074 152/* Private for OP_RV2?V, OP_?ELEM */
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PP
153#define OPpDEREF (32|64) /* Want ref to something: */
154#define OPpDEREF_AV 32 /* Want ref to AV. */
155#define OPpDEREF_HV 64 /* Want ref to HV. */
156#define OPpDEREF_SV (32|64) /* Want ref to SV. */
68dc0745
PP
157 /* OP_ENTERSUB only */
158#define OPpENTERSUB_DB 16 /* Debug subroutine. */
d3011074 159#define OPpENTERSUB_HASTARG 32 /* Called from OP tree. */
95f0a2f1 160#define OPpENTERSUB_NOMOD 64 /* Immune to mod() for :attrlist. */
7a52d87a 161 /* OP_RV2CV only */
68dc0745 162#define OPpENTERSUB_AMPER 8 /* Used & form to call. */
9675f7ac 163#define OPpENTERSUB_NOPAREN 128 /* bare sub call (without parens) */
cd06dffe 164#define OPpENTERSUB_INARGS 4 /* Lval used as arg to a sub. */
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165 /* OP_GV only */
166#define OPpEARLY_CV 32 /* foo() called before sub foo was parsed */
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167 /* OP_?ELEM only */
168#define OPpLVAL_DEFER 16 /* Defer creation of array/hash elem */
64aac5a9 169 /* OP_RV2?V, OP_GVSV only */
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170#define OPpOUR_INTRO 16 /* Variable was in an our() */
171 /* OP_RV2[AH]V, OP_PAD[AH]V, OP_[AH]ELEM */
172#define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */
192587c2 173 /* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */
79072805 174
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175/* Private for OPs with TARGLEX */
176 /* (lower bits may carry MAXARG) */
177#define OPpTARGET_MY 16 /* Target is PADMY. */
178
79072805 179/* Private for OP_CONST */
7a52d87a 180#define OPpCONST_STRICT 8 /* bearword subject to strict 'subs' */
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181#define OPpCONST_ENTERED 16 /* Has been entered as symbol. */
182#define OPpCONST_ARYBASE 32 /* Was a $[ translated to constant. */
a0d0e21e 183#define OPpCONST_BARE 64 /* Was a bare word (filehandle?). */
599cee73 184#define OPpCONST_WARNING 128 /* Was a $^W translated to constant. */
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185
186/* Private for OP_FLIP/FLOP */
a0d0e21e 187#define OPpFLIP_LINENUM 64 /* Range arg potentially a line num. */
79072805 188
ed6116ce 189/* Private for OP_LIST */
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190#define OPpLIST_GUESSED 64 /* Guessed that pushmark was needed. */
191
5f05dabc 192/* Private for OP_DELETE */
54310121 193#define OPpSLICE 64 /* Operating on a list of keys */
5f05dabc 194
afebc493
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195/* Private for OP_EXISTS */
196#define OPpEXISTS_SUB 64 /* Checking for &sub, not {} or []. */
197
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JH
198/* Private for OP_SORT */
199#define OPpSORT_NUMERIC 1 /* Optimized away { $a <=> $b } */
200#define OPpSORT_INTEGER 2 /* Ditto while under "use integer" */
201#define OPpSORT_REVERSE 4 /* Descending sort */
224a4551
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202/* Private for OP_THREADSV */
203#define OPpDONE_SVREF 64 /* Been through newSVREF once */
554b3eca 204
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205/* Private for OP_OPEN and OP_BACKTICK */
206#define OPpOPEN_IN_RAW 16 /* binmode(F,":raw") on input fh */
207#define OPpOPEN_IN_CRLF 32 /* binmode(F,":crlf") on input fh */
208#define OPpOPEN_OUT_RAW 64 /* binmode(F,":raw") on output fh */
209#define OPpOPEN_OUT_CRLF 128 /* binmode(F,":crlf") on output fh */
210
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211/* Private for OP_EXIT, HUSH also for OP_DIE */
212#define OPpHUSH_VMSISH 64 /* hush DCL exit msg vmsish mode*/
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213#define OPpEXIT_VMSISH 128 /* exit(0) vs. exit(1) vmsish mode*/
214
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215struct op {
216 BASEOP
217};
218
219struct unop {
220 BASEOP
221 OP * op_first;
222};
223
224struct binop {
225 BASEOP
226 OP * op_first;
227 OP * op_last;
228};
229
230struct logop {
231 BASEOP
232 OP * op_first;
233 OP * op_other;
234};
235
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236struct listop {
237 BASEOP
238 OP * op_first;
239 OP * op_last;
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240};
241
242struct pmop {
243 BASEOP
244 OP * op_first;
245 OP * op_last;
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246 OP * op_pmreplroot;
247 OP * op_pmreplstart;
248 PMOP * op_pmnext; /* list of all scanpats */
1fcf4c12 249#ifdef USE_ITHREADS
fd1bc7eb 250 IV op_pmoffset;
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AB
251#else
252 REGEXP * op_pmregexp; /* compiled expression */
253#endif
a0d0e21e 254 U16 op_pmflags;
4633a7c4 255 U16 op_pmpermflags;
48c036b1 256 U8 op_pmdynflags;
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257#ifdef USE_ITHREADS
258 char * op_pmstashpv;
259#else
260 HV * op_pmstash;
261#endif
79072805 262};
a0d0e21e 263
1fcf4c12 264#ifdef USE_ITHREADS
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AB
265#define PM_GETRE(o) (INT2PTR(REGEXP*,SvIVX(PL_regex_pad[(o)->op_pmoffset])))
266#define PM_SETRE(o,r) (sv_setiv(PL_regex_pad[(o)->op_pmoffset], PTR2IV(r)))
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267#define PM_GETRE_SAFE(o) (PL_regex_pad ? PM_GETRE(o) : (REGEXP*)0)
268#define PM_SETRE_SAFE(o,r) if (PL_regex_pad) PM_SETRE(o,r)
1fcf4c12 269#else
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270#define PM_GETRE(o) ((o)->op_pmregexp)
271#define PM_SETRE(o,r) ((o)->op_pmregexp = (r))
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272#define PM_GETRE_SAFE PM_GETRE
273#define PM_SETRE_SAFE PM_SETRE
1fcf4c12 274#endif
4825b64b 275
48c036b1 276#define PMdf_USED 0x01 /* pm has been used once already */
b3eb6a9b 277#define PMdf_TAINTED 0x02 /* pm compiled from tainted pattern */
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JH
278#define PMdf_UTF8 0x04 /* pm compiled from utf8 data */
279#define PMdf_DYN_UTF8 0x08
280
281#define PMdf_CMP_UTF8 (PMdf_UTF8|PMdf_DYN_UTF8)
48c036b1 282
b3eb6a9b 283#define PMf_RETAINT 0x0001 /* taint $1 etc. if target tainted */
a0d0e21e 284#define PMf_ONCE 0x0002 /* use pattern only once per reset */
c277df42 285#define PMf_REVERSED 0x0004 /* Should be matched right->left */
ce862d02 286#define PMf_MAYBE_CONST 0x0008 /* replacement contains variables */
a0d0e21e 287#define PMf_SKIPWHITE 0x0010 /* skip leading whitespace for split */
8782bef2 288#define PMf_WHITE 0x0020 /* pattern is \s+ */
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289#define PMf_CONST 0x0040 /* subst replacement is constant */
290#define PMf_KEEP 0x0080 /* keep 1st runtime pattern forever */
291#define PMf_GLOBAL 0x0100 /* pattern had a g modifier */
c90c0ff4 292#define PMf_CONTINUE 0x0200 /* don't reset pos() if //g fails */
a0d0e21e 293#define PMf_EVAL 0x0400 /* evaluating replacement as expr */
8782bef2 294#define PMf_LOCALE 0x0800 /* use locale for character types */
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LW
295#define PMf_MULTILINE 0x1000 /* assume multiple lines */
296#define PMf_SINGLELINE 0x2000 /* assume single line */
8782bef2 297#define PMf_FOLD 0x4000 /* case insensitivity */
a0d0e21e 298#define PMf_EXTENDED 0x8000 /* chuck embedded whitespace */
79072805 299
8782bef2
GB
300/* mask of bits stored in regexp->reganch */
301#define PMf_COMPILETIME (PMf_MULTILINE|PMf_SINGLELINE|PMf_LOCALE|PMf_FOLD|PMf_EXTENDED)
302
cb55de95 303#ifdef USE_ITHREADS
05ec9bb3 304
cb55de95 305# define PmopSTASHPV(o) ((o)->op_pmstashpv)
05ec9bb3 306# define PmopSTASHPV_set(o,pv) (PmopSTASHPV(o) = savesharedpv(pv))
cb55de95
JH
307# define PmopSTASH(o) (PmopSTASHPV(o) \
308 ? gv_stashpv(PmopSTASHPV(o),GV_ADD) : Nullhv)
05ec9bb3
NIS
309# define PmopSTASH_set(o,hv) PmopSTASHPV_set(o, ((hv) ? HvNAME(hv) : Nullch))
310# define PmopSTASH_free(o) PerlMemShared_free(PmopSTASHPV(o))
311
cb55de95
JH
312#else
313# define PmopSTASH(o) ((o)->op_pmstash)
314# define PmopSTASH_set(o,hv) ((o)->op_pmstash = (hv))
315# define PmopSTASHPV(o) (PmopSTASH(o) ? HvNAME(PmopSTASH(o)) : Nullch)
316 /* op_pmstash is not refcounted */
317# define PmopSTASHPV_set(o,pv) PmopSTASH_set((o), gv_stashpv(pv,GV_ADD))
05ec9bb3 318# define PmopSTASH_free(o)
cb55de95
JH
319#endif
320
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321struct svop {
322 BASEOP
323 SV * op_sv;
324};
325
7934575e 326struct padop {
79072805 327 BASEOP
7934575e 328 PADOFFSET op_padix;
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329};
330
331struct pvop {
332 BASEOP
333 char * op_pv;
334};
335
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336struct loop {
337 BASEOP
338 OP * op_first;
339 OP * op_last;
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340 OP * op_redoop;
341 OP * op_nextop;
342 OP * op_lastop;
343};
344
350de78d
GS
345#define cUNOPx(o) ((UNOP*)o)
346#define cBINOPx(o) ((BINOP*)o)
347#define cLISTOPx(o) ((LISTOP*)o)
348#define cLOGOPx(o) ((LOGOP*)o)
349#define cPMOPx(o) ((PMOP*)o)
350#define cSVOPx(o) ((SVOP*)o)
351#define cPADOPx(o) ((PADOP*)o)
352#define cPVOPx(o) ((PVOP*)o)
353#define cCOPx(o) ((COP*)o)
354#define cLOOPx(o) ((LOOP*)o)
355
356#define cUNOP cUNOPx(PL_op)
357#define cBINOP cBINOPx(PL_op)
358#define cLISTOP cLISTOPx(PL_op)
359#define cLOGOP cLOGOPx(PL_op)
360#define cPMOP cPMOPx(PL_op)
361#define cSVOP cSVOPx(PL_op)
362#define cPADOP cPADOPx(PL_op)
363#define cPVOP cPVOPx(PL_op)
364#define cCOP cCOPx(PL_op)
365#define cLOOP cLOOPx(PL_op)
366
367#define cUNOPo cUNOPx(o)
368#define cBINOPo cBINOPx(o)
369#define cLISTOPo cLISTOPx(o)
370#define cLOGOPo cLOGOPx(o)
371#define cPMOPo cPMOPx(o)
372#define cSVOPo cSVOPx(o)
373#define cPADOPo cPADOPx(o)
374#define cPVOPo cPVOPx(o)
375#define cCOPo cCOPx(o)
376#define cLOOPo cLOOPx(o)
377
378#define kUNOP cUNOPx(kid)
379#define kBINOP cBINOPx(kid)
380#define kLISTOP cLISTOPx(kid)
381#define kLOGOP cLOGOPx(kid)
382#define kPMOP cPMOPx(kid)
383#define kSVOP cSVOPx(kid)
384#define kPADOP cPADOPx(kid)
385#define kPVOP cPVOPx(kid)
386#define kCOP cCOPx(kid)
387#define kLOOP cLOOPx(kid)
388
389
390#ifdef USE_ITHREADS
638eceb6 391# define cGVOPx_gv(o) ((GV*)PL_curpad[cPADOPx(o)->op_padix])
743e66e6 392# define IS_PADGV(v) (v && SvTYPE(v) == SVt_PVGV && GvIN_PAD(v))
7766f137
GS
393# define IS_PADCONST(v) (v && SvREADONLY(v))
394# define cSVOPx_sv(v) (cSVOPx(v)->op_sv \
395 ? cSVOPx(v)->op_sv : PL_curpad[(v)->op_targ])
638eceb6
GS
396# define cSVOPx_svp(v) (cSVOPx(v)->op_sv \
397 ? &cSVOPx(v)->op_sv : &PL_curpad[(v)->op_targ])
350de78d 398#else
638eceb6 399# define cGVOPx_gv(o) ((GV*)cSVOPx(o)->op_sv)
743e66e6 400# define IS_PADGV(v) FALSE
7766f137
GS
401# define IS_PADCONST(v) FALSE
402# define cSVOPx_sv(v) (cSVOPx(v)->op_sv)
638eceb6 403# define cSVOPx_svp(v) (&cSVOPx(v)->op_sv)
350de78d 404#endif
79072805 405
638eceb6
GS
406#define cGVOP_gv cGVOPx_gv(PL_op)
407#define cGVOPo_gv cGVOPx_gv(o)
408#define kGVOP_gv cGVOPx_gv(kid)
409#define cSVOP_sv cSVOPx_sv(PL_op)
410#define cSVOPo_sv cSVOPx_sv(o)
411#define kSVOP_sv cSVOPx_sv(kid)
7766f137 412
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LW
413#define Nullop Null(OP*)
414
91135acb 415/* Lowest byte-and-a-bit of PL_opargs */
a0d0e21e
LW
416#define OA_MARK 1
417#define OA_FOLDCONST 2
418#define OA_RETSCALAR 4
419#define OA_TARGET 8
420#define OA_RETINTEGER 16
421#define OA_OTHERINT 32
422#define OA_DANGEROUS 64
423#define OA_DEFGV 128
b162f9ea 424#define OA_TARGLEX 256
a0d0e21e 425
db173bac 426/* The next 4 bits encode op class information */
b162f9ea
IZ
427#define OCSHIFT 9
428
429#define OA_CLASS_MASK (15 << OCSHIFT)
430
431#define OA_BASEOP (0 << OCSHIFT)
432#define OA_UNOP (1 << OCSHIFT)
433#define OA_BINOP (2 << OCSHIFT)
434#define OA_LOGOP (3 << OCSHIFT)
1a67a97c
SM
435#define OA_LISTOP (4 << OCSHIFT)
436#define OA_PMOP (5 << OCSHIFT)
437#define OA_SVOP (6 << OCSHIFT)
7934575e 438#define OA_PADOP (7 << OCSHIFT)
1a67a97c
SM
439#define OA_PVOP_OR_SVOP (8 << OCSHIFT)
440#define OA_LOOP (9 << OCSHIFT)
441#define OA_COP (10 << OCSHIFT)
442#define OA_BASEOP_OR_UNOP (11 << OCSHIFT)
443#define OA_FILESTATOP (12 << OCSHIFT)
444#define OA_LOOPEXOP (13 << OCSHIFT)
b162f9ea
IZ
445
446#define OASHIFT 13
a0d0e21e 447
4369b173 448/* Remaining nybbles of PL_opargs */
a0d0e21e
LW
449#define OA_SCALAR 1
450#define OA_LIST 2
451#define OA_AVREF 3
452#define OA_HVREF 4
453#define OA_CVREF 5
454#define OA_FILEREF 6
455#define OA_SCALARREF 7
456#define OA_OPTIONAL 8
457
534825c4
GS
458#ifdef USE_ITHREADS
459# define OP_REFCNT_INIT MUTEX_INIT(&PL_op_mutex)
460# define OP_REFCNT_LOCK MUTEX_LOCK(&PL_op_mutex)
461# define OP_REFCNT_UNLOCK MUTEX_UNLOCK(&PL_op_mutex)
462# define OP_REFCNT_TERM MUTEX_DESTROY(&PL_op_mutex)
534825c4
GS
463#else
464# define OP_REFCNT_INIT NOOP
465# define OP_REFCNT_LOCK NOOP
466# define OP_REFCNT_UNLOCK NOOP
467# define OP_REFCNT_TERM NOOP
534825c4 468#endif
e4783991 469
282f25c9
JH
470#define OpREFCNT_set(o,n) ((o)->op_targ = (n))
471#define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : Nullop)
472#define OpREFCNT_dec(o) (--(o)->op_targ)
473
e4783991
GS
474/* flags used by Perl_load_module() */
475#define PERL_LOADMOD_DENY 0x1
476#define PERL_LOADMOD_NOIMPORT 0x2
477#define PERL_LOADMOD_IMPORT_OPS 0x4
e5dd39fc
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478
479#ifdef USE_REENTRANT_API
7409d719 480
e5dd39fc 481typedef struct {
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482 struct tm* tmbuf;
483} REENTBUF;
2ed46c51 484
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485#define localtime(a) (localtime_r((a),PL_reentrant_buffer->tmbuf) ? PL_reentrant_buffer->tmbuf : NULL)
486#define gmtime(a) (gmtime_r((a),PL_reentrant_buffer->tmbuf) ? PL_reentrant_buffer->tmbuf : NULL)
2ed46c51 487
c769dab1 488#ifdef OLD_PTHREADS_API
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489
490/* HP-UX 10.20 returns 0 on success, what it returns on failure is hidden
491 in the fog somewhere, possibly -1 which means the following should do
492 the right thing - 20010816 sky */
493
494#undef localtime
495#undef gmtime
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496#define localtime(a) ((localtime_r((a),PL_reentrant_buffer->tmbuf) == 0) ? PL_reentrant_buffer->tmbuf : NULL)
497#define gmtime(a) ((gmtime_r((a),PL_reentrant_buffer->tmbuf) == 0) ? PL_reentrant_buffer->tmbuf : NULL)
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498#endif /* HP-UX 10.20 */
499
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500#endif
501